Crank shaft machining on two end faces by dedicated tooling solution is designed with conceptual model and full proof assembly structure. Work gives conceptual model and mechanical design of special application fixture hook made for crane which is to be used overhead material handling application in component machining automation. Crank shaft is to be machined for drilling operation executes in line on end faces of the component so this hook gives perfect fixturing with full proof poka yoke to move on overhead sliding panel provided in shop floor. design and product development considered with the manufacturability and practical feasibility. Structural weldment is the out coming function for this work of innovation .boundary conditions are examined and applied for analysis on actual behavior of the structure in working conditions. Loads are calculating by considering input parameters. Structural behavior analysis done in CAE tool to prove its workability.